Rubber Screw Barrel is specially designed for rubber processing applications, providing excellent plasticization performance, high wear resistance, and stable material conveying. It is widely used in rubber injection molding machines, rubber extruders, and other rubber processing equipment.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Rubber Machine Screw Barrel |
| Application | Rubber Injection Molding Machine / Rubber Extruder |
| Material | 38CrMoAlA / 42CrMo / 40CrNiMo / Customized Materials |
| Screw Diameter | Ø20mm – Ø250mm (Customized) |
| Screw Length | Customized according to machine requirements |
| L/D Ratio | 8:1 – 20:1 (Customized) |
| Screw Type | Rubber Injection Screw / Rubber Extrusion Screw |
| Screw Structure | Single Flight Screw / Barrier Screw / Customized Design |
| Compression Ratio | Customized according to rubber compound characteristics |
| Surface Treatment | Nitriding / Hard Chrome Plating / Bimetallic Alloy Coating |
| Nitriding Hardness | HV800 – HV1000 |
| Nitriding Depth | 0.5 – 0.8 mm |
| Hard Chrome Thickness | 0.03 – 0.10 mm |
| Alloy Layer Thickness | 1.0 – 2.0 mm |
| Barrel Material | 38CrMoAlA / 42CrMo / Bimetallic Barrel |
| Barrel Type | Integral Barrel / Segmented Barrel |
| Cooling Method | Water Cooling Channel (Optional) |
| Heating Method | Electric Heating / Ceramic Heating (Optional) |
| Straightness Tolerance | ≤0.10 mm/m |
| Surface Roughness | Ra ≤0.4 μm |
| Dimensional Accuracy | According to Customer Drawing |
| Inspection Standard | ISO / Customer Quality Standard |
Recommended Material & Treatment Options
Standard Option
38CrMoAlA + Nitriding Treatment
- Surface hardness: HV800–1000
- Good wear resistance
- Suitable for general rubber compounds
High Wear Resistance Option
42CrMo + Bimetallic Alloy Coating
- Excellent corrosion and abrasion resistance
- Suitable for abrasive rubber materials containing fillers
Premium Option
40CrNiMo + Hard Chrome Plating / Alloy Coating
- High toughness and fatigue resistance
- Suitable for heavy-duty rubber injection applications
Rubber Screw Design Features
- Large taper angle design suitable for rubber feeding and compression
- Optimized flight depth for stable material conveying
- Customized compression ratio according to rubber formulation
- Improved mixing performance and temperature control
- Reduced material residence time and degradation
- Enhanced wear resistance for long service life
Quality Control
Each Rubber Screw Barrel is inspected through:
- Chemical composition analysis
- Dimensional inspection
- Hardness testing
- Nitriding depth inspection
- Surface roughness measurement
- Straightness inspection
- Ultrasonic flaw detection (Optional)
- Final drawing verification
Custom Manufacturing Capability
We manufacture rubber screw barrels according to:
- Original equipment manufacturer (OEM) drawings
- Machine brand and model
- Rubber compound characteristics
- Processing requirements
Available for customized production from prototype orders to regular OEM supply.